Can anyone answer me if मांगा is on going या not !? Cause there is no update about it since months . Are they planning a अगला season या what ????

The मांगा it's on going, don't worry.
On the december issue it's released chapther 20 of "Onodera Ritsu no Baai". So, be needed only 75 days to Ritsu for to be fully to fill in प्यार with Takano.
For other official news, i suggest आप to खोजिए on twitter: @marukawashoten (sorry, the site it's only japanese)